Mascara brush



1. Mascara brush

FIG. 1.1 is a front elevation view of a mascara brush showing my new design;

FIG. 1.2 is a perspective view thereof;

FIG. 1.3 is another perspective view thereof;

FIG. 1.4 is a rear elevation view thereof;

FIG. 1.5 is a side elevation view thereof; and

FIG. 1.6 is a top plan view thereof. 

CLAIM The ornamental design for a mascara brush, as shown and described. 